Razor blade sharpening attachment



G. H. LEE

May 16, 1933.

RAZOR BLADE SHARPENING ATTACHMENT Filed May 4, 1932 INVENTOR 3 Y e//.E e WM 5, m f /7 W G 7 $1 a a W t W Patented May 16, 1933 UNITED STATES GEORGE E. LEE, LOS ANGELES, CALIFORNIA RAZOR. BLADE SHARPENING ATTACHMENT Application filed Kay 4, 1932. Serial No.

The resent invention has in view a device to faci itate the sharpening of safety razor blades by reciprocating movement of the blades on a concave surface.

An object of the invention is the provision of an attachment for a safety razor blade which is adapted to be applied thereto when the blade is to be shar ened for spacing the body of the blade rom a concave sharpening surface so that the beveled edges of the blades are evenly positioned against the said surface.

To obtain the best results in the sharpening of razor blades, it is essential thatthe beveled edges of the blades be presented evenly and at the roper an le againstthe honing surface. hen the bTade is so sitioned, movement of the same back and orth over the honing surface will produce akeen cutting edge. The resent invention, therefore, contem lates t e use of a concave surface as the s arpening surface and a device adapted to be applied to the body of the blade which spaces the central portion of the blade the required distance from the sharpening surface, so that the bevelled edges of the blade are arranged against the sharpening surface at an angle which will produce a keen edge.

Another object of the invention is the provision of an attachment of this character which is adapted to be applied to the blade by engagement with the longitudinal slot thereof, and so constructed that it may be readily applied to the said blade and removed therefrom after the blade is sharpened.

With these and other objects in View, the invention resides in the novel features of construction and arrangement of parts which will be more fully described and claimed hereinafter.

The invention is illustrated in the accompanying drawing, in which Figure 1 is a perspective view of a safety razor blade and an attachment aflixed thereto shown in position to be sharpened in a drinking glass or tumbler;

50 Fig. 2 is a cross sectional view of a safety razor blade and the attachment therefor on a section of a tumbler;

Fig. 3 is a perspective view of a safety razor blade and below the blade the attachment in position to be applied thereto;

Fig. 4 is a cross sectional view of a safety razor blade and the attachment in position thereon.

The invention comprises an attachment 10 adapted to be applied to a safety razor blade 11 of the type having two oppositelyarranged longitudinal cutting edges and a longitudinal opening or slot 12 arranged centrally of the blade for the purpose of applying it to a razor blade holder. To s arpen a blade of such construction, the inventlon contemplates the use of a concave sharpening sur ace, such as provided by the inner surface of a drinking glass or tumbler 13. It is not the intention, however, to confine the invention to the use of a tumbler or drinking glass as the sharpening surface,

-as any device with a smooth concave surface maiy be used for such purpose.

order to position the blade on the concave surface so that by reci rocating movement thereof the edges will come shar ened, the attachment 10 is rovided, w ich spaces the body of the lade from the s arpening surface the required distance so that the bevelled edges of the blade are presented evenly a ainst the said surface and at the proper angl e thereto. The said attachment may be made of any suitable material which is capable of being flexed when ap- 35 plying it to the blade and which will return to its normal form when in position thereon,

it having been found that relatively stiff cardboard is suitable for such purpose. The saidattachment is preferably formed from a single piece of material which is folded I to the required form and which, as shown in the drawing, includes a bottom fold 14 and oppositely-arranged accordion folds 15 and 16 forming a continuation of the longitudinal edges of the said fold 14. Constructed in this manner, the attachment 10 is adapted to be applied to the blade by flexing the'folds 15 and 16 to an upstanding position as shown in Figure 3, in which posi- 9 tion the upper layers of the folds may be passed through the slot 12 of the blade and then permitted to assume their normal, folded condition, thus attaching the blade thereto as shown in Figure 4. Then applied to the blade, the said attachment has an equal number of folds arranged on each side thereof andthis construction provides the same spacing of the blade from the sharpening surface for each side thereof, it being understood that after the blade is moved back and forth on the said surface with one side in contact therewith, it will be turned over and moved back and forth with the other side in contact therewith.

WVhen it is found necessary to sharpen a safety razor blade ofthe type hereinbefore described the attachment 10 may be applied thereto, and the blade with the attachment is placed in position on an arcuate honing surface such as the interior surface of a tumbler, as shown in Figure 1, and a finger of the operator pressed against the top of the attachment, as shown in dotted outline in Figure 2, to cause the opposite face of the attachment to contact with the honing surface and the edges of the blades to be brought into proper registry with the said surface, to provide a keen cutting edge by movement of the blade thereover.

Having described my invention, I now claim:

1. An attachment'for a safety razor blade for spacing the central portion of the blade from an arcuate honing surface the required distance to position the edges of the blade in proper relation to the said surface, to provide keen cutting edges by movement thereover, said attachment comprisin an in tegral piece of flexible material to (led to form a bottom ply, and a plurality of accordion folded plies forming a continuation of each of the longitudinal edges of said bottom ply, said attachment being narrower than the width of said blade, and when applied to said razor blade having an equal number of said plies arranged on each side thereof for spacing the said razor blade equi-distant from the outer surfaces of the said attachment 2. A device of the character described -width of the said bottom ply;

3. A honing attachment for safety razor blades which are provided with a centrally disposed slot or opening, said attachment o5 gomprising spacing members adapted to be sposed on opposite sides of the blade, and

a connecting member passing through the slot or opening of the blade, one of said spacing members being collapsible to permit its passage through the slot or opening.

GEORGE H. LEE. 

